S4 Flute 40Cr Material SDS Drill Bit is a variation of the twist drill bit.The material in 40Cr alloy steel,on the top, an insert of tungsten carbide is brazed into the steel to provide the cutting edges.
| Processing | Milled |
| Cutting Angle | 130o |
| Rod Material | 40Cr |
| Hardness | HRC46-48 |
| Tips | High Quality Tungsten Carbide |
| Hardness | HRC91-93 |
| Surface Finishing | Sandblasted |
| Application | Efficient in Concrete,Granite,Marble,Brick,Tile and so on |